Wrench.



P. REILLY.

WRENCH.

APPLICATION mmv Eovfs v9 378,208. Patented Dec. 13, 1910.

2 SHEETS-SHEET 1.

- mwm. j@ p P. REILLY.

WRENCH.

` `APPLIOATIOIN FILED )107. 29, 1909. 978,208 Patented Dee. 13,1910.

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PATRICK REILLY, 0F PHILADELPHIA., PENNSYLVANIA.

Wnnncn.

Specicaton of Letters Patent.

Patented Deo. 13, 1910.

Application tiled November 29, 1803. Serial No. 530,445.

To all whom 'it may concern:

Be it known that I, PATRICK Renan', a. citizen of the -United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvementsy in Wrenches, of which the following is a speci-l cation.

My invention relates to improvements in wrenches, the object of the invention being to provide an. improved device of this character which is capable of adjustment, in order to grasp various sizes of nnts,'and which is es ecially adapted for operating nuts in con ned spaces, such for example, as the moving and placing of nuts inthe bottom portion of car structures, Wherevthe workmen mustJ get at the nuts from underneath the car, and where an ordinary wrench is practically useless.

A further object is to provide an improved wrench of this character wl-.ich can be cheaply manufactured, which een be easily and quickly adjusted, andY which will be strong and durable in use.

With these and other objects in View, the invention consists in certain novel features or` construct-ion and combinations and arrangements of parts, as will be more fully hereinafter described and pointed out in the claim.

In the accompanying drawings: Figure 1 is a view partly in elevation and partly in longitudinal section illustrating one form of my improved wrench, the parts Ibeing adjusted to engage a larger size of nut. F ig. 2 is a View partly in elevation and partly in longitudinal section of F ig. 1, showing the parts adjusted to engage one of the .smaller sizes of nuts. F ig. 3 is a View in cross seetion en the line 3 3 of Fig. 1. Fig. 4 is a View artly in elevation and partly in longitudinal section of a modified form of wrench adapted for the engagement of hexagonal nuts. Fig. 5 is an end View of Fig.

4, and Fig. t3 is a View in section on the line 6 6 of Fig. 4.

Referrinff to Figs. 1, 2, and 7l, 1 represents a rectangular block which is integral with, or fixed to. a rod 2, the latter screw threaded throughout a portion of its length as shown in 3, and having a' tapering angular free end 4, upon which a handle 5 is secured by means of a cotter pin (l. 0n block 1, a rectangular casing' is mounted to slide` is open at one end, and at its other end is pro vided with a collar 8, larger than rod E?, and provided with an annular groove 9.

.10. is an adjusting-nut, having internal screw threads engaging the screw threads 3, and provided at one end with an annular flange 11.

12 repreJnts coupling ring which overlies flange 11 and is made, with an annular internal flange to proiect into groove 9, and when said ring 12 is secured to flange 11 by means of rivets 13, the turning of nut 10 will compel casing 7 to more longitudinally on block 1.

Block 1 is provided in its four sides. with recesses 14, in which the inner ends of arms 15 are pivotally secured by means of pins 16. which project through openings 17 in the block and through the arms 15. Bow springs 18 are secured in notches in the block 1, and bear at their free ends against the arms 15. pressing the latter outward and against the inner faces of easing 7, the opt-n free end of which latter is Y preferably slightly enlarged to reduce the internal diameter of the casing as shown at 19. The outer faces of all of the arms 15 are curved as shown. so that `when the casing 7 is moved toward the handle 5, the free ends of the arms 15 will be moved toward each other, and their nut engaging faces 2O will be positioned for engaging smaller sizes of mus. Then the sleeve is moved in the opposite direction. that is toward the free ends of arms i5, the, arms will be permitted to more apart and be held in this position by means of spring 18, so as to engage the larger sizes of nuts and it will be notedlhat in this position for engaging larger sizes of nuts, the arms will be more firmly braced by means of the casing, which is of course desirable, as it requires greater strain to turn largo nuts than .small ones.

In the modification illustrated in Figs. 4, 5, and 6, the construction is precisely like that shown in Figs. 1, 2, and 3 and as above described, with the. exception that the block 21, corresponding to block 1 of Fig. 1. is

hexagonal in form and the casing 22 correspending with casing 7, is also hexagonal in form. and there are six arms 23. corresponding with the arms 15. ln all other respects this modified structure is precisely like that shown in Figs. 1. 2. and'B. and I have utilized the same reference characters to indicate similar parts on the preferred form and the modification. The operation of the lllfl."

lion. :unl heure l lu nul restrict myself l0 ille prerise cle-mils fet furh. but; consider iix f.ll' :i lilieri tu nnike :u-h changes und :alu-intim 3. l'aiirly full wilhin the spirit :lml wolle nf the :ippenlleil ehiim.

Having thusA llesrrihell my invention what l z 'lziim :is new nml rlesire te seem-e by Let- 1 -r.- lzzlent ist-- In :i \\'1ench.ihe eomhinziliun with :i block, haring n plurality ef lint fmzw nml recesses furresponl'linfg in number l0 the number if llfil {zn-es. :i slfrmv-thremlell rod fixed to the renier nf smid bleek, :i easin movable 011V .will hluek :unl having :i plurality of internal tlm fuel engaging the flut faces of the lilnrli, clmpelling the block :ind casing t0 turn lliffelher. :l lnnnlle nn lhe free elnl of will rml, :irms pimlell in said recesses, flut .\1rin;- \-nr-rl in said recesses :ind pressing :ii1l :ii-nb. milnurll :agziiml the end of Suid whine' :1il owing' haring :1i its end :i relhn-wl lernril llinmeler, :unl :in adjusting mit mmmtml m will rml. :i groored exten- \im mi .will easing, :md :i ring,r of three .intersml lliumeter. the lnrger internal diameter luruecl over the 1mi. (he. intermediate diameter located over the larger (liznneter of the extension. unil the sinzllleftdiameter projecting into the groove of the extension. substantially :is described.

In teximony whereof I have signed my naine in thi? speeilienlion in the presence of im) snlcribing witnesses.

PATH ICK REILLY.

\.\'ilne ses:

CHAS. E. Pms, JOSHUA R. H. Pon-S. 

